Genuine OEM Volkswagen Engine Valve Cover Breather Line, part number 03L103493H. This line allows crankcase gases to be vented from the engine, preventing pressure buildup and ensuring efficient operation. It is typically connected to the valve cover and intake system. Made from durable, heat-resistant plastic, this line weighs approximately 0.063 kg and measures 0.37 meters in length. Choosing a genuine OEM breather line ensures precise fitment, correct routing geometry, and resistance to oil and heat for reliable, long-term performance.